(;GM[1]FF[4]SZ[19]
GN[White to play and connect underneath]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem3/Solution]AP[GoWiki:2009]
DT[2022-12-28]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem3/Solution

White to play and connect underneath]
PL[W]

AB[jb][cc][dc][kc][ed][gd][jd][fe][ie][df][gf]
AW[bc][fc][gc][hc][ic][cd][fd][be][cg]

;W[ee]C[W1]MN[1]
;B[de]C[B2]MN[2]
;W[cb]C[W3]MN[3]
;B[db]C[B4]MN[4]
;W[dd]C[W5]MN[5]
;B[ec]C[B6]MN[6]
;W[da]C[W7]MN[7]

;
)
